h2{
    text-align: center;
}

.people_list{
    width: 400px;
    margin: 40px auto;

    padding: 20px;

    border: 1px solid #eee; 

    li{
        height: 50px;
        line-height: 50px;

        .form_input{
            width: 300px;
            height: 28px;
        }
    }
}

button{
    width: 110px;
    height: 30px;
    // float: right;
    margin-right: 50px;
    margin-top:120px;
}